remove `workflows` from datasets in favor of `has_workflows`

See #300, release log:

• 13753b7 by @h1alexbel: chore: poetry 1.8.4
• c79dd33 by @h1alexbel: chore: poetry 2.0.0
• d0d8020 by @h1alexbel: chore: use latest
• 272a887 by @rultor: Merge branch '__rultor'
• b66b7a6 by @renovate[bot]: fix(deps): update dependency p...
• 342d5ea by @renovate[bot]: fix(deps): update dependency c...
• 59328c1 by @rultor: Merge branch '__rultor'
• f0dbb91 by @h1alexbel: chore: 1.8.4 poetry
• 790bef1 by @h1alexbel: feat(#300): back
• e3020cc by @h1alexbel: feat(#300): 1.8.4 on rultor
• bdf1d34 by @h1alexbel: feat(#300): poetry 1.8.4
• ff56e29 by @h1alexbel: feat(#300): to numerical.csv
• cee5685 by @h1alexbel: feat(#300): has_workflows
• a941c11 by @h1alexbel: chore: typo
• 07cd794 by @renovate[bot]: fix(deps): update dependency c...
• 2380616 by @renovate[bot]: chore(deps): update abatilo/ac...

Released by Rultor 2.0-SNAPSHOT, see build log